Lua APA (7ú heag.)

SPENCER DONALD D. (1985). LEARNING BASIC FOR MICROCOMPUTERS: A WORKTEXT FOR THE IBM. CHARLES E MERRILL PUBLISHING COMPANY.

Lua i Stíl Chicago (17ú heag.)

SPENCER DONALD D. LEARNING BASIC FOR MICROCOMPUTERS: A WORKTEXT FOR THE IBM. LONDON: CHARLES E MERRILL PUBLISHING COMPANY, 1985.

Lua MLA (9ú heag.)

SPENCER DONALD D. LEARNING BASIC FOR MICROCOMPUTERS: A WORKTEXT FOR THE IBM. CHARLES E MERRILL PUBLISHING COMPANY, 1985.

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